unnecessary null checking removed

@@ -499,14 +499,14 @@ class GetUtils {
 
   /// Capitalize each word inside string
   /// Example: your name => Your Name, your name => Your name
-  static String? capitalize(String value) {
+  static String capitalize(String value) {
     if (isBlank(value)!) return value;
     return value.split(' ').map(capitalizeFirst).join(' ');
   }
 
   /// Uppercase first letter inside string and let the others lowercase
   /// Example: your name => Your name
-  static String? capitalizeFirst(String s) {
+  static String capitalizeFirst(String s) {
     if (isBlank(s)!) return s;
     return s[0].toUpperCase() + s.substring(1).toLowerCase();
   }